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Skyworks Solutions Inc. SI5332CC08816-GM1R
- Part No.:
- SI5332CC08816-GM1R
- Manufacturer:
- Skyworks Solutions Inc.
- Package:
- -
- Datasheet:
-
SI5332CC08816-GM1R.pdf
- Description:
- IC CLOCK GENERATOR QFN
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Product details
Overview
SI5332CC08816-GM1R from Silicon Labs is a 6-output, any-frequency programmable clock generator in a 32-pin QFN package, supporting differential outputs up to 333.33 MHz with 190 fs RMS phase jitter (external crystal), PCIe Gen1–4 and SRIS compliance, and independent VDDO per output bank for mixed-supply applications such as Ethernet switches and server timing subsystems.
For engineers reviewing the SI5332CC08816-GM1R datasheet, SI5332CC08816-GM1R pinout, SI5332CC08816-GM1R application, or SI5332CC08816-GM1R equivalent, key selection considerations include its 6-output 32-QFN footprint, external crystal input support (16–50 MHz), configurable LVDS/LVPECL/HCSL/LVCMOS outputs, MultiSynth™ fractional synthesis architecture, and factory-programmable NVM configuration via ClockBuilder Pro™.
Technical Context
The SI5332CC08816-GM1R implements a two-stage synthesis architecture: a wideband PLL locks to an external 16–50 MHz crystal (XA/XB pins), then feeds up to three independent MultiSynth fractional dividers and five integer dividers. Its cross-point mux routes any synthesized frequency to any of six differential outputs.
Each output supports user-configurable signal format (LVDS, LVPECL, HCSL, or LVCMOS), adjustable skew (±122.5 ps in 35 ps steps), synchronous enable/disable, and independent VDDO supply (1.5/1.8/2.5/3.3 V), enabling mixed-voltage clock distribution without level shifters in industrial and communications systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output count | 6 differential clock outputs (or 12 LVCMOS), each individually configurable |
| Phase jitter (RMS) | 190 fs - meets PCIe Gen4 and SRIS jitter requirements for high-speed serial links |
| Max output frequency | 333.33 MHz differential - supports DDR4/5 memory clocks, 10G/25G Ethernet PHYs |
| Input reference | External crystal 16–50 MHz - no embedded crystal; requires XA/XB connection |
| Supply flexibility | Independent VDDO per output bank - enables simultaneous 1.8 V LVDS and 3.3 V LVCMOS outputs |
| Configuration interface | I²C serial interface + factory-programmed NVM - supports in-system reprogramming and power-up default config |
| Operating temperature | –40 °C to +85 °C - qualified for industrial and telecom infrastructure environments |
Pinout & Package
SI5332CC08816-GM1R uses a 5×5 mm, 32-pin QFN package (GM1 suffix) with exposed thermal pad. Pin functions are defined per the Si5332 32-QFN pinout in the official datasheet (Section 6.3), including dedicated XA/XB crystal inputs, six differential output pairs (OUT0/OUT0b through OUT5/OUT5b), five universal hardware input pins (Input1–Input5), I²C SCLK/SDATA, and individual VDDO0–VDDO5 supply pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XA, XB | Crystal oscillator input | Connects to external 16–50 MHz fundamental-mode crystal; internal CL programmable (2–30 pF) or disableable |
| OUT0–OUT5, OUT0b–OUT5b | Differential clock outputs | Each pair supports LVDS/LVPECL/HCSL/LVCMOS; individually format- and skew-configurable |
| VDDO0–VDDO5 | Output driver supply | Independent voltage rails per output pair - enables mixed-signal clocking (e.g., 1.8 V LVDS + 3.3 V LVCMOS) |
| SCLK, SDATA | I²C interface | Standard 2-wire serial bus for register programming and real-time configuration updates |
| Input1–Input5 | Universal hardware control | Configurable as OE#, spread spectrum enable, input select, or I²C address - defined in ClockBuilder Pro |
Key Features
| Feature | Design Value |
|---|---|
| MultiSynth™ fractional synthesis | Enables any-frequency output generation up to 250 MHz with 0 ppm synthesis error - eliminates need for multiple fixed-frequency oscillators |
| Cross-point mux architecture | Routes any MultiSynth or integer divider output to any of six differential outputs - maximizes routing flexibility in dense PCB layouts |
| Per-output signal format control | LVDS, LVPECL, HCSL, or LVCMOS selectable per output pair - simplifies interface to diverse PHYs and FPGAs without external translators |
| Configurable output skew | ±122.5 ps adjustment in 35 ps steps per differential pair - enables precise timing alignment across multi-lane SerDes interfaces |
| Multi-profile NVM storage | Stores up to 16 complete configurations - supports dynamic switching between system modes (e.g., low-power vs. full-bandwidth) |
Applications
| Ethernet Switch Timing | Server Memory Subsystem |
|---|---|
Use Scenario: High-density 10G/25G/100G Ethernet switch ASICs requiring synchronized reference clocks for multiple SerDes lanes and packet processing units. IC Role / Device Role / Timing Role: Primary clock generator providing six independently configured, low-jitter differential clocks to PHYs, MACs, and switch fabric controllers. Use Value: Replaces three discrete oscillators and a fanout buffer; eliminates inter-clock skew and reduces board area by 40% versus discrete solution. | Use Scenario: DDR4/DDR5 memory controller timing in dual-socket servers, where matched clock delays and sub-200 fs jitter are required for stable high-speed data capture. IC Role / Device Role / Timing Role: System-level clock synthesizer generating memory clock (CK), address/command (A/C), and data strobe (DQS) references with tight phase alignment. Use Value: Achieves <15 ps inter-output skew and 190 fs RMS jitter - meets JEDEC AC timing margins for DDR5-6400 operation. |
| Broadcast Video Equipment | Industrial Embedded Computing |
Use Scenario: SMPTE ST 2082 (12G-SDI) video routers and frame synchronizers needing genlock-capable, ultra-low-jitter pixel clocks across multiple channels. IC Role / Device Role / Timing Role: Master timing source distributing synchronized 74.25 MHz, 148.5 MHz, and 297 MHz clocks to ADC/DACs, FPGA video processors, and serializer ICs. Use Value: Supports simultaneous LVDS (for FPGAs) and HCSL (for SerDes) outputs - eliminates level-shifting components and reduces EMI from clock harmonics. | Use Scenario: Ruggedized edge computing gateways in factory automation, requiring reliable clocking under thermal cycling and EMI-rich environments. IC Role / Device Role / Timing Role: Robust, programmable clock source for ARM-based SoCs, Gigabit Ethernet PHYs, and isolated CAN FD interfaces. Use Value: –40 °C to +85 °C operation with integrated power filtering ensures stable timing during voltage transients and temperature drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable clock generator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si5332CC08817-GM1R | Same 32-QFN package and 6-output architecture, but factory-programmed with embedded 50 MHz crystal (E-grade); eliminates external XTAL placement and layout sensitivity | Preferred for space-constrained designs where crystal layout compromises jitter performance; not suitable if external crystal reference is mandated for frequency agility | Select when minimizing BOM count and PCB area is critical, and 50 MHz reference suffices for all target output frequencies |
| Si5341-A01879-GM | 10-output, 40-QFN variant with identical MultiSynth engine and 175 fs RMS jitter (embedded crystal); higher pin count and larger footprint | Used in more complex systems requiring >6 outputs (e.g., multi-port 100G line cards); incompatible pinout and thermal profile | Choose only when additional outputs or lower jitter (<175 fs) are required - not a drop-in replacement for SI5332CC08816-GM1R |
Compared with SI5332CC08816-GM1R, the GM1R variant offers optimal balance of compact 32-QFN size, external crystal flexibility, and PCIe/SRIS compliance, while Si5332CC08817-GM1R trades XTAL dependency for integration, and Si5341-A01879-GM expands output count at the cost of footprint and compatibility.
Availability
SI5332CC08816-GM1R is available at Aetrix Electronics and suitable for Ethernet switches, server memory subsystems, and broadcast video equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial and telecom deployments.
Supply support for SI5332CC08816-GM1R includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Silicon Labs is a fabless semiconductor company specializing in timing, wireless, and IoT solutions, with leadership in low-jitter clock technology and configurable mixed-signal ICs.
The Si5332 family was designed to replace multiple fixed-frequency oscillators and clock buffers with a single, software-configurable timing device for high-speed communications, data center, and broadcast infrastructure applications.
FAQ
What is the crystal frequency range supported by SI5332CC08816-GM1R?
The SI5332CC08816-GM1R supports external fundamental-mode crystals from 16 MHz to 50 MHz connected to the XA and XB pins. It does not include an embedded crystal; this part belongs to the Si5332A/B/C/D series (external crystal variants). Crystal load capacitance is programmable from 2 pF to 30 pF or fully disableable for external tuning networks.
Does SI5332CC08816-GM1R support PCIe Gen4 and SRIS compliance?
Yes, SI5332CC08816-GM1R delivers 190 fs RMS phase jitter (measured over 12 kHz–20 MHz offset) with an external crystal, meeting the stringent jitter requirements for PCIe Gen1/2/3/4 and SRIS (Spread Spectrum Independent Spread) specifications. Its low-noise MultiSynth™ synthesis architecture and integrated power filtering ensure robust compliance across temperature and voltage ranges.
How many independent output supply voltages does SI5332CC08816-GM1R support?
SI5332CC08816-GM1R provides six independent VDDO pins (VDDO0 through VDDO5), one per differential output pair. Each can be set to 1.5 V, 1.8 V, 2.5 V, or 3.3 V, enabling true mixed-signal clock distribution - for example, driving 1.8 V LVDS SerDes and 3.3 V LVCMOS microcontrollers simultaneously without external level shifters.
Can SI5332CC08816-GM1R generate non-integer output frequencies?
Yes, SI5332CC08816-GM1R uses Silicon Labs' MultiSynth™ fractional synthesis technology to generate any output frequency up to 250 MHz with zero ppm frequency error - including non-integer ratios like 156.25 MHz, 212.5 MHz, or 245.76 MHz - directly from a 25 MHz or 40 MHz crystal reference, eliminating the need for external frequency translators.
Is SI5332CC08816-GM1R pre-programmed or blank at shipment?
SI5332CC08816-GM1R ships with factory-programmed non-volatile memory (NVM) containing a custom ClockBuilder Pro™ configuration - specifically, the configuration encoded in its NVM code "C08816". This enables immediate operation at power-up without host processor intervention, while retaining full I²C reprogrammability for field updates or design iterations.
SI5332CC08816-GM1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Type:
- -
- PLL:
- -
- Input:
- -
- Output:
- -
- Number of Circuits:
- -
- Ratio - Input:Output:
- -
- Differential - Input:Output:
- -
- Frequency - Max:
- -
- Divider/Multiplier:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Mounting Type:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- -
SI5332CC08816-GM1R FAQ
1.How can I place an order for SI5332CC08816-GM1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI5332CC08816-GM1R on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SI5332CC08816-GM1R reliable?
The price and inventory of SI5332CC08816-GM1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI5332CC08816-GM1R is usually 5 days.
3.What payment methods are accepted for SI5332CC08816-GM1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI5332CC08816-GM1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI5332CC08816-GM1R?
SI5332CC08816-GM1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI5332CC08816-GM1R order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SI5332CC08816-GM1R?
For technical support, including SI5332CC08816-GM1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI5332CC08816-GM1R requirements.
6.How does Aetrix verify that SI5332CC08816-GM1R is sourced from the original manufacturer or authorized distributors?
All SI5332CC08816-GM1R products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SI5332CC08816-GM1R meets industry standards.
7.What is the process for return or replacement of SI5332CC08816-GM1R?
All SI5332CC08816-GM1R units undergo pre-shipment inspection (PSI). If there is an issue with SI5332CC08816-GM1R, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SI5332CC08816-GM1R part is unused and in its original packaging.
Return procedure for SI5332CC08816-GM1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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